Amazon’s AWS (Amazon Web Services) S3 web-based storage service in North America experienced widespread issues beginning at 12:37 PM EST on February 28. As reported on Amazon’s status dashboard, “high error rates with S3 in US-EAST-1.” This was the only explanation provided at the time. Consequently, many popular online services…

The impact of website/app performance on the bottom line of an Internet firm is an undisputed fact (refer to our earlier blog for further discussion on the subject). Over the years, the industry has come to terms with no longer considering performance as an afterthought and making it a top…

Those who fail to learn from history are doomed to repeat it. In a recent performance report for Black Friday and Cyber Monday, we had highlighted (with concrete data) that there were some failures as well as slowdowns on some desktop and mobile sites. The incidents can broadly be categorized…

E.H. Simpson first described this phenomenon in 1951. The name Simpson’s paradox was introduced by Colin R. Blyth in 1972.[1] Blyth mentioned that: G. W. Haggstrom pointed out that Simpson’s paradox is the simplest form of the false correlation paradox in which the domain of x is divided into short…

This is a guest post from Cloudinary, a cloud-based image and video management solution. We are always looking for ways to help companies deliver digital experiences that will meet customers expectations in terms of content and performance. Tackling these 5 challenges is a good step towards delivering a top-notch digital…

In Part I, we provided an overview of the metrics arms race and had walked through the use of sampling in this regard. We had also discussed the importance of baking in recency of data during sampling and some of the pitfalls of sampling such as the sampling error. Recall…

This is a guest post written by EMA Research Analyst Julie Craig. You can also find it published here. Today’s complex computing environments make it difficult to achieve the visibility needed to effectively monitor end-to-end application delivery. For many modern applications, User Experience Monitoring (UEM) solutions are the only real…

In a recent report from MarketsAndMarkets, it was forecasted that IT Operations Analytics (ITOA) market shall grow from $2.17B by 2015 to $9.79B by 2020, at a Compound Annual Growth Rate (CAGR) of 35.2% from 2015 to 2020. This coupled with decreasing cost of HDDs on a per GB basis…

The recent surge in high-profile outages is not an illusion. It’s all too real and one major contributing factor often goes unmentioned. Reposted with permission from CircleID, this piece by Russ White highlights the role complexity plays in the increasingly fragile digital customer experience: It’s a familiar story by now:…

With cloud computing becoming ubiquitous and the advent of IoT, the problems associated with the three Vs of Big Data – viz., volume, velocity, and variety – would exacerbate. One routinely hears from speakers at every industry conference about the magnitude of the three Vs at their respective companies. However,…